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It is well known that 2D finite element (FE) estimation of stator losses in machines driven by the pulse width modulated (PWM) supplies may result in highly exaggerated losses. This work presents a new simple analytical approach which can predict the PWM losses in the stator laminations of a concentrated winding permanent magnet synchronous machine. Experimental set-up is used to examin the results...
Nowadays the majority of electric drives work at variable speeds. In this kind of drives the electrical machines are supplied by inverters which generate modulated voltages. It is widely known that these non sinusoidal voltages cause additional current harmonics dealing to higher iron losses than with sinusoidal voltages. The iron losses affect to several design constraints as the efficiency and the...
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